Apparatuses and methods for ultra reliable low latency communications in new radio based vehicle to everything environment

1. A method of wireless communication at a user equipment (UE) in a distributed cellular-vehicle to everything (C-V2X) environment, comprising: configuring an ultra-reliable low-latency communication (URLLC) transmission unit; and transmitting the URLLC transmission unit within a regular subframe to a second UE, wherein the configuring of the URLLC transmission unit comprises configuring a URLLC transmission indicator, a URLLC control channel, and a URLLC data portion and wherein the URLLC transmission indicator comprises a one-bit channel to indicate whether or not there is a URLLC transmission and the URLLC control channel comprises at least one or more fields for MIMO information and demodulation information for the URLLC data portion.

2. The method of claim 1 , wherein the URLLC data portion immediately follows the URLLC control channel within the regular subframe and wherein the URLLC transmission indicator is located at a beginning of the regular subframe.

3. The method of claim 1 , wherein the configuring of the URLLC transmission unit further comprises one or more of: determining a number of OFDM symbols within the regular subframe to puncture and a location of the OFDM symbols within the regular subframe; puncturing the number of OFDM symbols within the regular subframe and inserting the URLLC transmission unit into the punctured OFDM symbols; configuring an URLLC channel indicator at end of the regular subframe to indicate details of the transmitted URLLC transmission unit, including a location of the punctured OFDM symbols, and the number of OFDM symbols punctured within the regular subframe; and configuring a URLLC transmission time interval (TTI) within a regular TTI of the regular subframe and wherein the URLLC TTI is a portion of the regular TTI.

4. The method of claim 3 , wherein the transmitting of the URLLC transmission unit comprises one or more of: transmitting the URLLC transmission unit in the punctured OFDM symbols within the URLLC TTI; transmitting the punctured OFDM symbols containing the URLLC transmission unit with a transmission power having a power spectrum density (PSD) higher than a PSD for other parts of the regular subframe when an interference is higher than a threshold; transmitting the URLLC transmission units on a randomly selected channel when the interference is higher than a threshold; and dividing the URLLC TTI into two virtual URLLC slots and transmitting the URLLC transmission unit over the two virtual URLLC slots over two subchannels, when the interference is higher than a threshold.

5. The method of claim 4 , wherein a relationship between the two virtual URLLC slots is either predefined or indicated in a regular control channel at an end of the regular subframe; wherein the randomly selected channel is preconfigured or allocated by a controlling node and overlaps or do not overlap with regular TTI channels.

6. The method of claim 4 , further comprising one or more of: resuming transmitting regular data in remaining OFDM symbols after transmitting the URLLC transmission unit in the punctured OFDM symbols; monitoring an interference from at least one other UE in the distributed C-V2X environment; retransmitting the URLLC transmission unit in a blind HARQ retransmission; and retransmitting the URLLC transmission unit in a broadcast message.

7. The method of claim 3 , wherein the UE is operating in a half-duplex mode or a full-duplex mode.

8. An apparatus for wireless communication at a user equipment (UE) in a distributed cellular-vehicle to everything (C-V2X) environment, comprising: means for configuring an ultra-reliable low-latency communication (URLLC) transmission unit; and means for transmitting the URLLC transmission unit within a regular subframe to a second UE, wherein the means for configuring the URLLC transmission unit further comprises configuring a URLLC transmission indicator, a URLLC control channel, and a URLLC data portion and wherein the URLLC transmission indicator comprises a one-bit channel to indicate whether or not there is a URLLC transmission and the URLLC control channel comprises at least fields for MIMO information and demodulation information for the URLLC data portion.

9. The apparatus of claim 8 , wherein the URLLC data portion immediately follows the URLLC control channel within the regular subframe and wherein the URLLC transmission indicator is located at a beginning of the regular subframe.

10. The apparatus of claim 8 , wherein the means for configuring the URLLC transmission unit further comprises one or more of determining a number of OFDM symbols within the regular subframe to puncture and a location of the OFDM symbols within the regular subframe; puncturing the number of OFDM symbols within the regular subframe and inserting the URLLC transmission unit into the punctured OFDM symbols; configuring an URLLC channel indicator at end of the regular subframe to indicate details of the transmitted URLLC transmission unit, including a location of the punctured OFDM symbols, and the number of OFDM symbols punctured within the regular subframe; and configuring a URLLC transmission time interval (TTI) within a regular TTI of the regular subframe and wherein the URLLC TTI is a portion of the regular TTI.

11. The apparatus of claim 10 , wherein the means for transmitting the URLLC transmission unit further comprises transmitting the URLLC transmission unit in the punctured OFDM symbols within the URLLC TTI.

12. The apparatus of claim 11 , wherein the means for transmitting the URLLC transmission unit further comprises one or more of: transmitting the punctured OFDM symbols containing the URLLC transmission unit with a transmission power having a power spectrum density (PSD) higher than a PSD for other parts of the regular subframe when an interference is higher than a threshold; transmitting the URLLC transmission unit further comprises transmitting the URLLC transmission units on a randomly selected channel when the interference is higher than a threshold; and dividing the URLLC TTI into two virtual URLLC slots and transmitting the URLLC transmission unit over the two virtual URLLC slots over two subchannels, when the interference is higher than a threshold.

13. The apparatus of claim 12 , wherein the randomly selected channel is preconfigured or allocated by a controlling node and overlap or do not overlap with regular TTI channels.

14. The apparatus of claim 12 , wherein a relationship between the two virtual URLLC slots is either predefined or indicated in a regular control channel at an end of the regular subframe and wherein the UE is operating in a half-duplex mode or a full-duplex mode.

15. The apparatus of claim 11 , further comprising means for one or more of monitoring an interference from at least one other UE in the distributed C-V2X environment; resuming transmitting regular data in remaining OFDM symbols after transmitting the URLLC transmission unit in the punctured OFDM symbols; retransmitting the URLLC transmission unit in a blind HARQ retransmission; and retransmitting the URLLC transmission unit in a broadcast message.

16. An apparatus for wireless communication at a user equipment (UE) in a distributed cellular-vehicle to everything (C-V2X) environment, comprising: a memory; and at least one processor coupled to the memory and configured to: configure an ultra-reliable low-latency communication (URLLC) transmission unit; and transmit the URLLC transmission unit within a regular subframe to a second UE, wherein to configure the URLLC transmission unit comprises configuring a URLLC transmission indicator, a URLLC control channel, and a URLLC data portion; and wherein the URLLC transmission indicator comprises a one-bit channel to indicate whether or not there is a URLLC transmission and the URLLC control channel comprises at least fields for MIMO information and demodulation information for the URLLC data portion.

17. The apparatus of claim 16 , wherein the URLLC data portion immediately follows the URLLC control channel within the regular subframe and wherein the URLLC transmission indicator is located at a beginning of the regular subframe.

18. The apparatus of claim 16 , wherein to configure the URLLC transmission unit further comprises one or more of: determining a number of OFDM symbols within the regular subframe to puncture and a location of the OFDM symbols within the regular subframe; puncturing the number of OFDM symbols within the regular subframe and inserting the URLLC transmission unit into the punctured OFDM symbols; configuring an URLLC channel indicator at end of the regular subframe to indicate details of the transmitted URLLC transmission unit, including a location of the punctured OFDM symbols, and the number of OFDM symbols punctured within the regular subframe; and configuring a URLLC transmission time interval (TTI) within a regular TTI of the regular subframe and wherein the URLLC TTI is a portion of the regular TTI.

19. A method of wireless communication at a user equipment (UE) in a distributed cellular-vehicle to everything (C-V2X) environment, comprising: receiving a regular subframe from another UE in the distributed C-V2X environment; and determining an ultra-reliable low-latency communication (URLLC) transmission unit from the regular subframe, wherein the determining of the URLLC transmission unit comprise determining a URLLC transmission indicator, a URLLC control channel and a URLLC data portion, and wherein the URLLC transmission indicator comprises a one-bit channel to indicate whether there is a URLLC transmission in the regular subframe, and is located at a beginning of the regular subframe and the URLLC control channel comprises at least fields for MIMO information, and demodulation information for the URLLC data portion; or wherein the URLLC data portion immediately follows the URLLC control channel within the URLLC transmission unit when the URLLC transmission indicator indicates there is a URLLC transmission.

20. The method of claim 19 , wherein the determining of the URLLC transmission unit comprises one or more of: detecting a URLLC channel indicator at end of a regular transmission time interval (TTI) for the regular subframe, indicating a length and a location of punctured OFDM symbols within the regular subframe for the URLLC transmission unit; determining a number of punctured OFDM symbols within the regular subframe and the location of the punctured OFDM symbols within the regular subframe, based on the URLLC channel indicator; determining a URLLC TTI within the regular TTI and wherein the URLLC TTI is a portion of the regular TTI; decoding the URLLC control channel and the URLLC data portion in the punctured OFDM symbols within the URLLC TTI; detecting a transmission power for the URLLC transmission unit having a power spectrum density (PSD) higher than that of other parts of the regular subframe when an interference is higher than a threshold; and detecting the URLLC transmission unit on a randomly selected channel or subchannel when the interference is higher than a threshold; and detecting the URLLC transmission unit over two virtual URLLC slots for the URLLC TTI, when the interference is higher than a threshold.

21. The method of claim 20 , wherein the randomly selected channel or subchannel is preconfigured or allocated by a controlling node and does or does not overlap with regular TTI channels; and wherein a relationship between the two virtual URLLC slots is either predefined or indicated in a URLLC channel indicator at an end of the regular subframe.

22. The method of claim 19 , further comprising one or more of: monitoring an interference from at least one other UE in the distributed C-V2X environment; decoding regular data in remaining OFDM symbols after decoding the punctured OFDM symbols within the regular TTI; receiving a URLLC retransmission unit in a blind HARQ retransmission; and receiving a URLLC retransmission unit comprises in a broadcast message.